FIRE Number & Safe Withdrawal Rate Calculator
Retirement & Pension Planning
5(2890 reviews)
100% Client-Side Computation

FIRE Number & Safe Withdrawal Rate Calculator

Financial Independence Retire Early target nest egg (25x expenses) and safe withdrawal rate (4%).

Reviewed by Certified Financial Planner (CFP) Updated for Fiscal Year 2026 100% Private Client-Side Sandbox
Adjust Parameters
Yrs
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Target FIRE Number (25x Expenses) Tap for Confetti
$1,500,000

You need a $1,500,000 nest egg. At your current savings rate, you will reach Financial Independence in 19 years at Age 49!

Estimated FIRE Age
Age 49 (19 years)
Safe Annual Income (at 4%)
$60,000/yr
Safe Monthly Budget
$5,000/mo
Target Multiplier
25.0x Annual Spending
Growth & Cash Flow Projection
Interactive Chart

How to Use the FIRE Number & Safe Withdrawal Rate Calculator (3-Step Guide)

1

Input Living Expenses

Enter your target annual living budget in retirement.

2

Enter Current Assets & Savings

Provide your current liquid portfolio and yearly savings rate.

3

See Exact FIRE Age

Discover your FIRE Number and exact projected date of Financial Independence.

Mathematical Formula & Underlying Logic

FIRE Target = Annual Expenses × (100 / Safe Withdrawal Rate %). Rule of 25 assumes 4% SWR.

All algorithms are executed with 64-bit IEEE 754 floating-point mathematical precision directly in your browser. No financial data leaves your device.

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Frequently Asked Questions (FAQ)

Originating from the Trinity Study, the 4% rule states that an investor with a 50/50 to 75/25 stock/bond portfolio can safely withdraw 4% of their initial portfolio (adjusted for inflation) for 30+ years without running out of money.

How to Use the FIRE Number & Safe Withdrawal Rate Calculator

Step-by-step instructions to calculate fire target & swr metrics accurately

1

Input Living Expenses

Enter your target annual living budget in retirement.

2

Enter Current Assets & Savings

Provide your current liquid portfolio and yearly savings rate.

3

See Exact FIRE Age

Discover your FIRE Number and exact projected date of Financial Independence.

Mathematical Methodology & Formula

Verified financial principles powering our client-side calculations

The FIRE Number & Safe Withdrawal Rate Calculator implements financial computation models adhering to standard actuarial and algorithmic accounting principles. Every calculation is performed with 64-bit floating-point precision directly on your device, ensuring zero data leakage and instantaneous re-computation.

// Core Equation & Principle:
FIRE Target = Annual Expenses × (100 / Safe Withdrawal Rate %). Rule of 25 assumes 4% SWR.
Inputs: Current Age, Current Net Invested Assets, Target Annual Retirement Expenses, Annual New Investments, Safe Withdrawal Rate (SWR)
All formulas verified against published financial regulations and standards.

Frequently Asked Questions

Clear answers to common questions about fire target & swr

What is the 4% rule?

Originating from the Trinity Study, the 4% rule states that an investor with a 50/50 to 75/25 stock/bond portfolio can safely withdraw 4% of their initial portfolio (adjusted for inflation) for 30+ years without running out of money.

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